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March 26, 2002 Tree Rings Show a Period of Widespread Warming in Medieval Age By KENNETH CHANG A new study of old tree rings shows that 1,000 years ago, long before power plants and sport utility vehicles, temperatures across North America, Europe and Asia rose in a period of unusual warmth. In warm weather, trees thrive and grow a thick ring of wood in their trunks for that year. In cold years, growth slows and the tree ring is thin. Temperatures were known to be warm in Europe between 900 and 1100, what is known as the Medieval Warm Period....

In 1983 a sponge diver found funny metal biscuits with ears at the ocean floor. That is how the excavation got started, Hirschfeld said. The ship carried ten tons of copper ingots, which after being analyzed, were determined to be from Cyprus. Each ingot weighs approximately 60 pounds, she said. She and her team also excavated glass ingots, tons of tin, and three Italian swords that were not part of the cargo of the ship. Among the 130 Canaanite jars they found, there were traces of wine in the jars and one was full of glass beads. The team also...

Remains of a long dead house mouse have been found in the wreck of a Bronze Age royal ship. That makes it the earliest rodent stowaway ever recorded, and proof of how house mice spread around the world. Archaeologist Thomas Cucchi of the University of Durham, UK, identified a fragment of a mouse jaw in sediment from a ship that sank 3500 years ago off the coast of Turkey. The cargo of ebony, ivory, silver and gold - including a gold scarab with the name of the Egyptian queen Nefertiti - indicates it was a royal vessel. Because the cargo...

Geologists from GUtech, in cooperation with archeologists from the Ministry of Heritage and Culture, have dug up evidence of a tsunami or severe storm that hit Ras Al Hadd about 4,500 years ago...The fact that there were two settlement phases, the first of which was marked by buildings made of sand brick, and the second by mud brick, suggests the village was destroyed at one point and rebuilt. The remains date back to between 3,100 and 2,700 BC, and the evidence suggests they were built one after the other, meaning the people didn't leave the area despite having their homes...

Olympia, the Sanctuary of Zeus and venue of the Olympic Games in Ancient Greece, was probably destroyed by tsunamis that reached far inland, and not as previously believed, by earthquakes and river flooding... Paläotsunamis that have taken place over the last 11,000 years along the coasts of the eastern Mediterranean. The Olympic-tsunami hypothesis has been put forward due to sediments found in the vicinity of Olympia, which were buried under an 8 metres thick layer of sand and other debris, and only rediscovered around 250 years ago. "The composition and thickness of the sediments we have found, do not fit...

UNSW scientists have shown -- for the first time -- that a series of high-profile burial sites in the Pacific, Mediterranean and northern Scotland were likely related to catastrophic tsunamis... Honorary Professor James Goff from the PANGEA Research Centre at UNSW Sydney, who co-authored the paper, says the research provides new insights into past human-environment interactions and a new perspective on past catastrophic events... The researchers looked at coastal mass burial sites in the Solomon Islands and Vanuatu as well as in Orkney and Shetland. The mass graves cover a long timeframe of human history -- they are from about...

Mega-tsunami theory disputed February 03, 2008 SUPPOSED evidence Australia has been subject to prehistoric tsunamis up to 20m in height over the past 10,000 years could just be the result of Aboriginal occupation, a major conference is set to hear tomorrow. Archaeologists from the Australian National University say the theory about the mega-tsunamis, which has influenced the development of emergency service plans in Western Australia, is not supported by evidence. In 2003 Australian geological researchers suggested prehistoric tsunamis over the past 10,000 years were much larger than those recorded since European settlement, including findings of surges up to 20m in...

Geologists think that the eastern slope of Fogo volcano crashed into the sea some 65,000 to 124,000 years ago, leaving a giant scar where a new volcano can be seen growing in this satellite image. Credit: NASA ========================================================================================================================================= Scientists working off west Africa in the Cape Verde Islands have found evidence that the sudden collapse of a volcano there tens of thousands of years ago generated an ocean tsunami that dwarfed anything ever seen by humans. The researchers say an 800-foot wave engulfed an island more than 30 miles away. The study could revive a simmering controversy over whether sudden...

Scientists are using the site to help determine the frequency of catastrophes like the event of 26 December 2004. This is being done by dating the cave's tsunami-borne sediments, which are easy to see between layers of bat droppings. Continue reading the main story “ Start Quote Because people thought they had no history of such things, they thought it was impossible” End Quote Prof Kerry Sieh Director, Earth Observatory of Singapore "The tsunami sands just jump right out at you because they're separated by guano layers. There's no confusing the stratigraphy (layering)," explains Dr Jessica Pilarczyk. "It makes for...

A cave on the northwestern coast of Sumatra holds a remarkable record of big tsunamis in the Indian Ocean. The limestone opening, close to Banda Aceh, retains the sandy deposits washed ashore by huge, earthquake-induced waves over thousands of years. Scientists are using the site to help determine the frequency of catastrophes like the event of 26 December 2004.

Did a Comet Cause the Great Flood?The universal human myth may be the first example of disaster reporting. by Scott Carney11-15-2007 The Fenambosy chevrons at the tip of Madagascar. Image courtesy of Dallas Abbott The serpent’s tails coil together menacingly. A horn juts sharply from its head. The creature looks as if it might be swimming through a sea of stars. Or is it making its way up a sheer basalt cliff? For Bruce Masse, an environmental archaeologist at Los Alamos National Laboratory, there is no confusion as he looks at this ancient petroglyph, scratched into a rock by a...

At the southern end of Madagascar lie four enormous wedge-shaped sediment deposits, called chevrons, that are composed of material from the ocean floor. Each covers twice the area of Manhattan with sediment as deep as the Chrysler Building is high. On close inspection, the chevron deposits contain deep ocean microfossils that are fused with a medley of metals typically formed by cosmic impacts. And all of them point in the same direction — toward the middle of the Indian Ocean where a newly discovered crater, 18 miles in diameter, lies 12,500 feet below the surface. The explanation is obvious to...

At the southern end of Madagascar lie four enormous wedge-shaped sediment deposits, called chevrons, that are composed of material from the ocean floor. Each covers twice the area of Manhattan with sediment as deep as the Chrysler Building is high. On close inspection, the chevron deposits contain deep ocean microfossils that are fused with a medley of metals typically formed by cosmic impacts. And all of them point in the same direction — toward the middle of the Indian Ocean where a newly discovered crater, 18 miles in diameter, lies 12,500 feet below the surface. The explanation is obvious to...

Dallas Abbott The Fenambosy chevron, one of four near the tip of Madagascar, is 600 feet high and three miles from the ocean. At the southern end of Madagascar lie four enormous wedge-shaped sediment deposits, called chevrons, that are composed of material from the ocean floor. Each covers twice the area of Manhattan with sediment as deep as the Chrysler Building is high. On close inspection, the chevron deposits contain deep ocean microfossils that are fused with a medley of metals typically formed by cosmic impacts. snip... The explanation is obvious to some scientists. A large asteroid or comet,...

A powerful earthquake in Alaska sent towering waves up to 30 feet (9 meters) tall crashing down on Hawaii about 500 years ago, leaving behind fragments of coral, mollusk shells and coarse beach sand in a sinkhole located on the island of Kauai, new research finds. The quake, likely a magnitude 9.0, sent the mighty waves toward Hawaii sometime between 1425 and 1665, the study found. It's possible that another large Alaskan earthquake could trigger a comparable tsunami on Hawaii's shores in the future, experts said. The tsunami was at least three times the size of the damaging 1946 tsunami,...

Tablets served as a reminder for many of the danger that can follow earthquakes Modern sea walls failed to protect coastal towns from Japan's destructive tsunami last month. But in the hamlet of Aneyoshi, a single centuries-old tablet saved the day. "High dwellings are the peace and harmony of our descendants," the stone slab reads. "Remember the calamity of the great tsunamis. Do not build any homes below this point." It was advice the dozen or so households of Aneyoshi heeded, and their homes emerged unscathed from a disaster that flattened low-lying communities elsewhere and killed thousands along Japan's northeastern...

The massive eruption of the Thera volcano in the Aegean Sea more than 3,000 years ago produced killer waves that raced across hundreds of miles of the Eastern Mediterranean to inundate the area that is now Israel and probably other coastal sites, a team of scientists has found. The team, writing in the October issue of Geology, said the new evidence suggested that giant tsunamis from the catastrophic eruption hit “coastal sites across the Eastern Mediterranean littoral.” Tsunamis are giant waves that can crash into shore, rearrange the seabed, inundate vast areas of land and carry terrestrial material out to...

If an asteroid like this one, depicted in an artist's drawing, hit Earth's oceans, it could generate huge waves that would move more slowly than previously thought, but in the end, cause more damage. Asteroid Tsunamis Could be Huge, Slow By Larry O'Hanlon, Discovery News normalize font   |   increase font June 7 — Just when you thought it was safe to go in the water, a new supercomputer model predicts that meteors and asteroids splashing down in the oceans can create waves twice as big, but slower moving, than previous estimates. In other words, if Earth gets walloped...

Contemporary chroniclers wrote about a "mystery cloud" which dimmed the light of the sun above the Mediterranean in the years 536 and 537 CE. Tree rings testify poor growing conditions over the whole Northern Hemisphere - the years from 536 CE onward seem to have been overshadowed by an unusual natural phenomenon. Social crises including the first European plague pandemic beginning in 541, are associated with this phenomenon. Only recently have researchers found conclusive proof of a volcanic origin of the 536 solar dimming, based on traces of volcanic sulfur from two major eruptions newly dated to 536 CE and...

Madoc In AmericaNative American Histories in the USA Is truth stranger than fiction? Of course it is; it always has been One subject that has been debated for the last four hundred years was whether or not a Khumric-Welsh Prince called Madoc discovered America. Queen Elizabeth I was persuaded by her advisors that this was so and the Khumric-Welsh discovery was put forward as somehow giving England a prior claim in the political wrangles over first rights in the New World of the Americas. No one ever thought to investigate the British records. Caradoc of Llancarfan wrote about it circa...